Home / 6,513.49-8,988.07-3,681.12

Finding the Fourth Proportional to 6,513.49, 8,988.07 and 3,681.12

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Solution

The fourth proportional to 6,513.49, 8,988.07 and 3,681.12 is: 5,079.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,513.49 : 8,988.07 = 3,681.12 : x
  2. Step 2: Convert to fraction form
    6,513.49/8,988.07 = 3,681.12/x
  3. Step 3: Cross multiply
    6,513.49x = 8,988.07 × 3,681.12
  4. Step 4: Simplify right side
    6,513.49x = 33,086,164.24
  5. Step 5: Solve for x
    x = 33,086,164.24/6,513.49
  6. Step 6: Final answer
    x = 5,079.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.